Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.

100%

Stock ECU being replaced

ETCS power (TBP, throttle bypass)

SL8-B-20 Analog input 7 (switchable 1k pull-up)

SL8-A-12 Auxiliary output 3

SL8-A-13 Auxiliary output 4

OEM-E2

Stock ECU being replaced

13ETCS power (TBP, throttle bypass)

24O2 right rear (OXR2)

25O2 heater right rear (HTR2)

26O2 heater left rear (HTL2)

SL8-A-10 Auxiliary output 1

ETCS main relay (+BM)

EFI main relay (+B2)

SL8-B-4 Ignition switch input

SL8-A-17 Auxiliary output 8

EFI main relay (+B)

OEM-E3

Stock ECU being replaced

4Fuel pump relay (FPR)

7ETCS main relay (+BM)

8EFI main relay (+B2)

9Ignition switch (IGSW)

10EFI main relay control (MREL)

16EFI main relay (+B)

SL8-A-23 Digital input 4

SL8-A-24 Digital input 5

SL8-A-25 Digital input 6

SL8-B-21 Analog input 8 (switchable 1k pull-up)

SL8-A-11 Auxiliary output 2

OEM-E4

Stock ECU being replaced

2Starter signal (STA)

5Diagnostic/timing check (TC)

6Stop light switch (STP)

8O2 left rear (OXL2)

13A/C clutch relay (ACMG)

SL8-A-21 Digital input 2

SL8-A-20 Digital input 1

OEM-E5

Stock ECU being replaced

5Vehicle speed sensor (SP2+)

11Vehicle speed sensor (SP2-)

5V ref

SL8-A-7 Injection channel 7

SL8-A-8 Injection channel 8

SL8-A-1 Injection channel 1

SL8-A-2 Injection channel 2

SL8-B-19 Analog input 6

SL8-B-22 Analog input 9 (switchable 1k pull-up)

SL8-B-23 Analog input 10 (switchable 1k pull-up)

SL8-B-15 Analog input 5

SL8-B-11 Analog input 1

SL8-B-13 Analog input 3

GND

0V sensor

SL8-B-12 Analog input 2

SL8-B-14 Analog input 4

OEM-E6

Stock ECU being replaced

2Sensor supply +5V (VC)

3O2 heater right front (HTR)

4O2 heater left front (HTL)

5Injector 1 (#10)

6Injector 2 (#20)

10Mass air flow (VG)

11O2 right front (OXR1)

12O2 left front (OXL1)

14Coolant temperature (THW)

15Accelerator pedal 1 (VPA)

16Accelerator pedal 2 (VPA2)

17Power ground (E1)

18Sensor ground (E2)

19MAF ground (EVG)

23Throttle position 1 (VTA)

24Throttle position 2 (VTA2)

SL8-A-3 Injection channel 3

SL8-A-4 Injection channel 4

SL8-A-5 Injection channel 5

SL8-A-6 Injection channel 6

SL8-B-7 Sync sensor +

SL8-A-26 Ignition channel 1

SL8-A-27 Ignition channel 2

SL8-A-28 Ignition channel 3

SL8-B-3 EFI relay output (low side, 200 mA)

SL8-A-14 Auxiliary output 5

SL8-A-15 Auxiliary output 6

SL8-A-16 Auxiliary output 7

GND

0V sensor

SL8-B-5 Crank index sensor +

SL8-A-22 Digital input 3

SL8-B-24 Knock 2 +

SL8-B-16 Knock 1 +

OEM-E7

Stock ECU being replaced

1Injector 3 (#30)

2Injector 4 (#40)

3Injector 5 (#50)

4Injector 6 (#60)

10Cam position (G2)

11Ignition 1 (IGT)

12Ignition 2 (IGT2)

13Ignition 3 (IGT3)

17VVT-i OCV - (OCV-)

18VVT-i OCV + (OCV+)

19ETCS throttle clutch - (CL-)

20ETCS throttle clutch + (CL+)

21Power ground (E01)

22Crank position return (NE-)

23Crank position (NE)

25Igniter feedback (IGF)

27Knock sensor 2 (KNK2)

28Knock sensor 1 (KNK1)

SL8

SL8-A

SL8

1Injection channel 1

2Injection channel 2

3Injection channel 3

4Injection channel 4

5Injection channel 5

6Injection channel 6

7Injection channel 7

8Injection channel 8

10Auxiliary output 1

11Auxiliary output 2

12Auxiliary output 3

13Auxiliary output 4

14Auxiliary output 5

15Auxiliary output 6

16Auxiliary output 7

17Auxiliary output 8

20Digital input 1

21Digital input 2

22Digital input 3

23Digital input 4

24Digital input 5

25Digital input 6

26Ignition channel 1

27Ignition channel 2

28Ignition channel 3

34Aux 9–10 14V supply

OEM-E6-5 Injector 1 (#10)

OEM-E6-6 Injector 2 (#20)

OEM-E7-1 Injector 3 (#30)

OEM-E7-2 Injector 4 (#40)

OEM-E7-3 Injector 5 (#50)

OEM-E7-4 Injector 6 (#60)

OEM-E6-3 O2 heater right front (HTR)

OEM-E6-4 O2 heater left front (HTL)

OEM-E3-4 Fuel pump relay (FPR)

OEM-E4-13 A/C clutch relay (ACMG)

OEM-E2-25 O2 heater right rear (HTR2)

OEM-E2-26 O2 heater left rear (HTL2)

OEM-E7-18 VVT-i OCV + (OCV+)

OEM-E7-19 ETCS throttle clutch - (CL-)

OEM-E7-20 ETCS throttle clutch + (CL+)

OEM-E3-10 EFI main relay control (MREL)

OEM-E5-11 Vehicle speed sensor (SP2-)

OEM-E5-5 Vehicle speed sensor (SP2+)

OEM-E7-25 Igniter feedback (IGF)

OEM-E4-2 Starter signal (STA)

OEM-E4-5 Diagnostic/timing check (TC)

OEM-E4-6 Stop light switch (STP)

OEM-E7-11 Ignition 1 (IGT)

OEM-E7-12 Ignition 2 (IGT2)

OEM-E7-13 Ignition 3 (IGT3)

Aux 9–10 14V supply

SL8-B

SL8

1ECU 14V supply

2Sensor supply Vref1 5.0V

3EFI relay output (low side, 200 mA)

4Ignition switch input

5Crank index sensor +

6Crank index sensor −

7Sync sensor +

8Sync sensor −

10Analog sensor 0V reference

11Analog input 1

12Analog input 2

13Analog input 3

14Analog input 4

15Analog input 5

16Knock 1 +

18ECU ground

19Analog input 6

20Analog input 7 (switchable 1k pull-up)

21Analog input 8 (switchable 1k pull-up)

22Analog input 9 (switchable 1k pull-up)

23Analog input 10 (switchable 1k pull-up)

24Knock 2 +

26ECU ground

29–30 no data

ECU 14V supply

5V ref

OEM-E7-17 VVT-i OCV - (OCV-)

OEM-E3-9 Ignition switch (IGSW)

OEM-E7-23 Crank position (NE)

SP-0V · 3 pins

OEM-E7-10 Cam position (G2)

SP-0V · 3 pins

0V sensor

OEM-E6-15 Accelerator pedal 1 (VPA)

OEM-E6-23 Throttle position 1 (VTA)

OEM-E6-16 Accelerator pedal 2 (VPA2)

OEM-E6-24 Throttle position 2 (VTA2)

OEM-E6-14 Coolant temperature (THW)

OEM-E7-28 Knock sensor 1 (KNK1)

GND

OEM-E6-10 Mass air flow (VG)

OEM-E2-24 O2 right rear (OXR2)

OEM-E4-8 O2 left rear (OXL2)

OEM-E6-11 O2 right front (OXR1)

OEM-E6-12 O2 left front (OXL1)

OEM-E7-27 Knock sensor 2 (KNK2)

GND

29–30 no data

SP-14V · 7 pins

SP-0V · 7 pins

SP-GND · 5 pins